Regelmäßige Wartung und Einstellung
6-41
6
GAU68070
Fehlersuchdiagramme
Startprobleme und mangelnde Motorleistung
1. FuelThere is enough fuel.
There is no fuel.Supply fuel.
The engine turns over 
quickly.
Operate the electric 
starter.
Check the 
compression.
The engine turns over 
slowly.
Wipe off with a dry 
cloth and correct the 
spark plug gap, or 
replace the spark 
plug.
Check the electrolyte 
and battery lead 
connections, and 
charge the battery if 
necessary.
The engine does not 
start. 
Have a Yamaha 
dealer check the 
vehicle.
4. BatteryThe battery is good.
3. IgnitionWet
Dry
The engine does not 
start.
Check the 
compression.
Have a Yamaha 
dealer check the 
vehicle.The engine does not 
start. 
Check the battery.
Remove the spark 
plug and check 
the electrodes.
Check the fuel level 
in the fuel tank.
Operate the electric 
starter.
Operate the electric 
starter.
There is compression.
There is no 
compression.Have a Yamaha dealer check the vehicle.
Check the ignition.2. Compression
UBR3G0G0.book  Page 41  Friday, June 19, 2015  3:06 PM